Numbers & Math
Sidewalk Chalk Sundial & Shadow Tracker
The child will create a series of at least three colored chalk outlines of their body's shadow, showing its changing position and length over several hours.
Ready right now 20 min Ages 5–9 years 2–5 players Outdoor
Time MeasurementSpatial AwarenessObservation & Data CollectionGross Motor Skills
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Learning benefits
- 💡 Tracing the shadow and standing still engages gross motor control and body awareness. Recording times and measurements in the notebook introduces basic data collection, while observing the shadow's changes provides a tangible, visual representation of the Earth's rotation and the passage of time.
Safety notes
- ⚠️ Ensure the activity is done in a location safe from vehicle traffic, like a driveway or a park path. Apply sunscreen before starting, as the activity requires being in direct sun for multiple intervals. The small, flat rock could be a tripping hazard, so place it in a low-traffic spot within the play area.
Cleanup
- 🧹 To clean up, simply brush the small, flat rock and any chalk dust off the pavement. The jumbo sidewalk chalk drawings can be left for the next rain to wash away, or they can be rinsed off with a bucket of water or a hose if needed.